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DrMaxNix
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import java.util.ArrayList;
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import java.util.List;
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/*
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All you need to play a nice round of Tic-tac-toe in less than 430 lines!
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@author DrMaxNix
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@version 1.0.2
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*/
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public class Bluejtactoe {
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private boolean gameRunning;
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private char currentPlayer;
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private List<List<Character>> field = new ArrayList<>();
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///////////////////////////
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// C O N T R U C T O R S //
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///////////////////////////
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/*
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Constructor with default values (field-size = 3)
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*/
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public Bluejtactoe(){
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//reset game-start
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gameRunning = false;
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//reset current player
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currentPlayer = 'x';
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//start with empty field
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field = emptyField(3);
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//print field for first time
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updateField();
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}
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/*
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Constructor for custom field-size (I always wanted to play a round of 9x9 tic-tac-toe ╰(*°▽°*)╯ ................)
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*/
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public Bluejtactoe(int NEWFIELDSIZE){
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//reset game-start
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gameRunning = false;
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//reset current player
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currentPlayer = 'x';
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// FIELDSIZE //
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//check if fieldsize is in range
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if(!(NEWFIELDSIZE >= 2 && NEWFIELDSIZE <= 9)){
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System.out.println("Field-size must be between 2 and 9");
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System.exit(0);
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}
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//start with empty field
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field = emptyField(NEWFIELDSIZE);
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// PRINT FIELD FOR FIRST TIME //
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updateField();
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}
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///////////////
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// I N P U T //
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///////////////
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/*
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Handle and process user input
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*/
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public void playerInput(String COORDS){
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//get one coord and check if it is valid
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int coordX = coordStringGet('x', COORDS);
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//check if input was valid
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if(coordX >= 0){
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//get other coord
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int coordY = coordStringGet('y', COORDS);
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//check if that cell is still empty
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char thatCellCurrentState = getCell(coordX, coordY);
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if(thatCellCurrentState == ' '){
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//save current player
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char thatPlayer = currentPlayer;
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//swap current player for next round
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currentPlayer = (currentPlayer == 'o' ? 'x' : 'o');
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//set cell
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setCell(coordX, coordY, thatPlayer);
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} else {
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System.out.println("Player " + thatCellCurrentState + " has already put their marker into that cell..");
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}
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}
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}
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///////////////////////////////////
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// F I E L D & D I S P L A Y //
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///////////////////////////////////
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/*
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Generate and return empty field with FIELDSIZE
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*/
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private static List<List<Character>> emptyField(int FIELDSIZE){
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//generate new field
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List<List<Character>> field = new ArrayList<>();
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//fill field with spaces
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for(int x = 0; x < FIELDSIZE; x++){
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//start with empty row
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List<Character> row = new ArrayList<>();
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//add this row's columns
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for(int y = 0; y < FIELDSIZE; y++){
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row.add(' ');
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}
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//add this row to row list
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field.add(row);
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}
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//return filled field
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return field;
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}
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/*
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Print new field on screen
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*/
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private void updateField(){
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//get field size
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int fieldSize = field.size();
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//clear output
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for(int q = 0; q < 128; q++){
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System.out.println();
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}
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// PRINT HEADER //
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if(!gameRunning){
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System.out.println("BlueJ-tac-toe v1.0.2 by DrMaxNix (www.drmaxnix.de)");
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}
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System.out.print("┌");
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for(int x = 0; x < fieldSize; x++){
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System.out.print((x > 0 ? "┬" : "") + "-" + (char)(x + 65) + "-");
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}
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System.out.println("┐");
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// PRINT ROWS //
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for(int y = 0; y < fieldSize; y++){
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//maybe print spacer row
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if(y > 0){
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System.out.print("├");
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for(int x = 0; x < fieldSize; x++){
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System.out.print((x > 0 ? "┼" : "") + "---");
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}
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System.out.println("┤");
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}
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//print row
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System.out.print(y + 1);
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for(int x = 0; x < fieldSize; x++){
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//get this field's state
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char thatFieldState = field.get(x).get(y);
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//print cell
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System.out.print((x > 0 ? "│" : "") + " " + thatFieldState + " ");
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}
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System.out.println(y + 1);
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}
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// PRINT FOOTER //
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System.out.print("└");
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for(int x = 0; x < fieldSize; x++){
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System.out.print((x > 0 ? "┴" : "") + "-" + (char)(x + 65) + "-");
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}
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System.out.println("┘");
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// CHECK FOR A WINNER //
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winnerCheck();
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// PRINT USAGE MESSAGE //
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if(!gameRunning){
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//make game running
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gameRunning = true;
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System.out.println("To make a move use the playerInput()-method. E.g. playerInput(\"A3\")");
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System.out.println("It takes one parameter: a string of the char and the number making up the");
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System.out.println("coordinates for your desired cell (order and case doesn't matter).");
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System.out.println();
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}
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//print next player
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System.out.println("Player " + currentPlayer + ", please make your move!");
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}
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/*
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Set cell on field
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*/
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private void setCell(int X, int Y, char CHAR){
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//set cell
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field.get(X).set(Y, CHAR);
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//update displayed field
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updateField();
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}
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/*
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Get cell on field
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*/
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private char getCell(int X, int Y){
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//get cell
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char cell = field.get(X).get(Y);
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//return
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return cell;
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}
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///////////////////////////////////
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// W I N N E R C H E C K I N G //
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///////////////////////////////////
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/*
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Check for and handle a win
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*/
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private void winnerCheck(){
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//get field size
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int fieldSize = field.size();
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// CHECK ROWS AND COLUMNS //
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for(int q = 0; q < 2; q++){
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//for each row/column
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for(int w = 0; w < fieldSize; w++){
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//start positive
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boolean isWin = true;
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//get first marker (rest of row/column will be compared with that one)
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char compareMarker = field.get(w).get(w);
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//check this row/column's markers
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for(int e = 0; e < fieldSize; e++){
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//get this marker
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char thatMarker;
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if(q == 0){
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thatMarker = field.get(w).get(e);
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} else {
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thatMarker = field.get(e).get(w);
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}
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//compare
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if(thatMarker != compareMarker || thatMarker == ' '){
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//this marker rules this row/column out
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isWin = false;
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e = fieldSize;
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}
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}
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//handle win
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if(isWin){
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//print win message
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System.out.println();
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System.out.println("---------------------------------");
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System.out.println("Player " + compareMarker + " won!");
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System.out.println("---------------------------------");
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//exit
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System.exit(0);
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}
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}
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}
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// CHECK DIAGONALS //
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for(int q = 0; q < 2; q++){ //q=0:/\< q=1:/\>
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//get first marker (rest of diagonal will be compared with that one)
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char compareMarker = field.get(0).get(q * (fieldSize - 1));
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//start positive
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boolean isWin = true;
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//check this row/column's markers
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for(int e = 0; e < fieldSize; e++){
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//get this marker
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char thatMarker;
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if(q == 0){
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thatMarker = field.get(e).get(e);
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} else {
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thatMarker = field.get(e).get((fieldSize - (e + 1)));
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}
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//compare
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if(thatMarker != compareMarker || thatMarker == ' '){
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//this marker rules this diagonal out
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isWin = false;
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e = fieldSize;
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}
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}
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//handle win
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if(isWin){
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//print win message
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System.out.println();
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System.out.println("---------------------------------");
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System.out.println("Player " + compareMarker + " won!");
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System.out.println("---------------------------------");
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//exit
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System.exit(0);
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}
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}
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// CHECK FOR A TIE //
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for(int q = 0; q < 2; q++){
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//start positive
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boolean isTie = true;
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//check all cells if there's a marker inside
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for(int x = 0; x < fieldSize; x++){
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for(int y = 0; y < fieldSize; y++){
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if(getCell(x, y) == ' '){
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isTie = false;
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}
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}
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}
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//handle tie
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if(isTie){
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//print tie message
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System.out.println();
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System.out.println("-------------------------------");
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System.out.println("Tie! Nobody won! (Or did both?)");
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System.out.println("-------------------------------");
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//exit
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System.exit(0);
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}
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}
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}
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///////////////////////////////////////
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// C O O R D S C O N V E R S I O N //
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///////////////////////////////////////
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/*
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Get X OR Y coord as int from USER INPUT (string)
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*/
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private int coordStringGet(char XORY, String USERINPUT){
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// CHECK STRING-LENGTH //
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if(USERINPUT.length() != 2){
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System.out.println("Invalid input '" + USERINPUT + "'");
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return -1;
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}
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// GET INDIVIDUAL CHARS //
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char char0 = USERINPUT.charAt(0);
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char char1 = USERINPUT.charAt(1);
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// GET COORDS SORTED //
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//get y-coord (number)
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char coordY = ((char0 >= 48 && char0 <= 57) ? char0 : char1);
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//get x-coord (char, the one that isn't the number)
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char coordX = ((char0 >= 48 && char0 <= 57) ? char1 : char0);
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//maybe convert x-coord (char) to right case
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if((coordX >= 97 && coordX <= 122)){ //if lowercase..
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//make uppercase
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coordX -= 32;
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}
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// CHECK IF THE CHARS ARE VALID //
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//get field size
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int fieldSize = field.size();
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//y-coord (number)
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if(!(coordY > 48 && coordY <= (48 + fieldSize))){
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System.out.println("Invalid input '" + USERINPUT + "'");
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return -1;
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}
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//x-coord (char)
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if(!(coordX >= 65 && coordX <= (65 + (fieldSize - 1)))){
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System.out.println("Invalid input '" + USERINPUT + "'");
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return -1;
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}
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// CONVERT FROM CHAR TO INT //
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coordX -= 65;
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coordY -= 49;
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//return
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if(XORY == 'x'){
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return coordX;
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} else {
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return coordY;
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}
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}
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}
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@ -0,0 +1,27 @@
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#BlueJ package file
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editor.fx.0.height=0
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editor.fx.0.width=0
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editor.fx.0.x=0
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editor.fx.0.y=0
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objectbench.height=192
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objectbench.width=1896
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package.divider.horizontal=0.6
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package.divider.vertical=0.8002008032128514
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package.editor.height=790
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package.editor.width=1806
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package.editor.x=1912
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package.editor.y=0
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package.frame.height=1096
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package.frame.width=1936
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package.numDependencies=0
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package.numTargets=1
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package.showExtends=true
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package.showUses=true
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project.charset=UTF-8
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target1.height=50
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target1.name=Bluejtactoe
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target1.showInterface=false
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target1.type=ClassTarget
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target1.width=100
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target1.x=70
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target1.y=10
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